Detailed Lighting Procedures

DETAILED LIGHTING DESIGN PROCEDURES DESIGN DECISIONS Refer again. to the figure on lighting design procedure chart, chapter 14; at this point in the design process the lighting hardware is chosen on the basis of the considerations · . adduced in the· preliminary design stage and the appropriate calculations performed. Some spc:~oes will require overall, uniform illumination other spaces will utilize local lighting al~ne (or local lighting in addition to general). requiring point-by-point illumination caiculations or some other method for restricted-area calculation. Part of these calcula.. tions are- those VCP and ESI either exact or estimated. Additional considerations at this design stage are type of ceiling system, for example, modular, movable fixture, and integrated ·~ ·:rvice, and ancillary considerations of ballast noise, fixture heat distribution, brightness ratios and maintenance. Also decided here is whether to utilize work station mounted or built-in lighting, both of which are principally applicable to open-plan spaces.

Direct - lighting luminaire Characteristics It is important to understand th~ action of luminaire reflectors. The basic shapes and · beam patterns are illustrated in these following: figures ( 1), (2), (3), (4), whilsielding methods are shown in figure (5).

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